26 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.61. 



to second; fifth longer than fourth but not as long as third; last 

 segment long, slender and subovate. 



Pronotum yellow-brown, saddle-shaped, wider than long (nar- 

 row), with short hairs on anterior margin, posterior margin emar- 

 ginate. Meso- and meta-notum and dorsum of abdomen yellow- 

 brown. Abdomen with long, golden-yellow pubescence, ventral sur- 

 face paler. 



Legs yellow-brown, long and slender, 



MeasureTnents. 



Length of entire soldier or nasutus : 2.75-3 nnn. 



Length of head with nasu-s: 1.20-1.4.') mm. 



Lengtli of liead witiiout nasus (to anterior of head) : 0.90-1.00 mm. 



Length of nasus: 0.405-0.50 mm. 



Length of abdomen and thorax togetlier : 1 .75-2.00 mm. 



Length of pronotum : 0.105 mm. 



Length of hind tibia : 0.900-.906 mm. 



Width of head (at widest point) : 0.."')0-0.505 nun. 



Width of pronotum: 0307 mm. 



Worker. — Head castaneous-brown, lighter at base of antennae, 

 broadest anteriorly, longer than wide, tapers where rounded poste- 

 riorly, with short pubescence. Post-clypeus 3'ellow-brown, about 

 twice as broad as long, projecting (raised). Labrum yellowish, 

 broadest at middle, rounded at apex, tapers posteriorly, pubescent 

 on anterior area. 



Antennae yellow, longer than head, 18-14 segments, with long 

 pubescence; first segment long, stout, cylindrical; second clavate, 

 short, half length of first ; third longer than second, clavate, slender 

 at base, not as long as first ; fourth clavate, short, approximately 

 as long as second; fifth clavate, longer; last segment long, slende'% 

 subovate. 



Pronotum lighter colored than head, saddle-shaped, broader thnn 

 long (narrow), with short pubescence on anterior and lateral mar- 

 gins. 



Meso- and meta-notum and dorsum of abdomen same color as 

 pronotum. 



Ventral surface of abdomen lighter colored, with long, golden- 

 yellow pubescence. 



Legs yellow, long, with pubescence. 



Measurements. 



Length of entire worker : 3.60-4.00 mm. 



Length of abdomen and thorax together : 2.75-3.00 mm. 



Length of liead : 1.40-1.50 mm. 



Length of hind tibia : 1.10 mm. 



Width of head : 1.10 mm. 



